CssLinkResourceTransformer (Spring Framework 4.3.30.RELEASE API)

java.lang.Object
- org.springframework.web.servlet.resource.ResourceTransformerSupport
- - org.springframework.web.servlet.resource.CssLinkResourceTransformer

All Implemented Interfaces:
ResourceTransformer
```
public class CssLinkResourceTransformer
extends ResourceTransformerSupport
```
A ResourceTransformer implementation that modifies links in a CSS file to match the public URL paths that should be exposed to clients (e.g. with an MD5 content-based hash inserted in the URL).
The implementation looks for links in CSS @import statements and also inside CSS url() functions. All links are then passed through the ResourceResolverChain and resolved relative to the location of the containing CSS file. If successfully resolved, the link is modified, otherwise the original link is preserved.
Since:
4.1
Author:
Rossen Stoyanchev

Nested Class Summary
Nested Classes
Modifier and Type Class Description
protected static class CssLinkResourceTransformer.AbstractCssLinkParser
protected static interface CssLinkResourceTransformer.CssLinkParser

Constructor Summary
Constructors
Constructor Description
CssLinkResourceTransformer()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Resource`	`transform(HttpServletRequest request, Resource resource, ResourceTransformerChain transformerChain)`	Transform the given resource.

Methods inherited from class org.springframework.web.servlet.resource.ResourceTransformerSupport
getResourceUrlProvider, resolveUrlPath, setResourceUrlProvider

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - CssLinkResourceTransformer
```
public CssLinkResourceTransformer()
```
- Method Detail
  - transform
```
public Resource transform(HttpServletRequest request,
                          Resource resource,
                          ResourceTransformerChain transformerChain)
                   throws IOException
```
    Description copied from interface: ResourceTransformer
    Transform the given resource.
    Parameters:
    request - the current request
    resource - the resource to transform
    transformerChain - the chain of remaining transformers to delegate to
    Returns:
    the transformed resource (never null)
    Throws:
    IOException - if the transformation fails